Roof covering



May 22, 1928. 1,670,942

w. THOMSEN ROOF COVERING Filed May 10, 1926 7 ATTORNEY.

'IINVENTOR.

Patented May 22, 1928.

,UNITED STATES 1, 70,942 PATENT. OFFICE.

WALTER THOMSEN, QF- DAVENPORT, IOWA.

ROOF COVERING.

Application filed May 10, 1926. Serial No. 108,115.

My invention relates to improvements in roof coverings in which an asphaltic felt or lower or exposed portion thereof will not.

curl after being laid upon the roof; to provide auxiliary means for holding the lower end of the exposed portion of the shingle down; and to provide a shingle which can readily be out either crosswise or lengthwise from the usual sized rolls of roofing material; also to provide a strip shingle of a width corresponding to the length of the ordinary wooden shingles and which when laid will form an agreeable and distinctive pattern;

I attain these objects by the means. illustrated in the accompanying drawings, in which I Figure l is a topor plan view of a portion of a roof showing four courses of shingles in addition to the bottom course, and with the upper shingle. having a small portion broken away to show the underlying clip; Fig. 2 is a top or plan view of the flap clip before it is bent and Figure 3 is shown by a dotted line, 1. Over the second.

a detailed sectional view showing the clip bent into its final position.

Each full sized strip comprises what might'be called two shingles, the strips as 9 in Figure 1, being approximately thirtytwo inches long from left to right and approximatelynineteen-inches high from top to bottom. The top and sides of the shingles are cut on straight lines at right angles to each other, but the bottom line is cut on a curve, with approximately two inches at the middle of the bottom of each projecting or exposed part flattened or straightened for a distance of approximately two inches,

the curves on each side of this flattened portion bein drawn to radii of approximately three an one-eight inches spaced one inch at each side of the middle line of the projecting or exposed portion.

The lower course may be merely a straight strip of roofing material as' 2, the-upper edge of which is shown in dotted line, 2.

Upon this course is laid the first strip shingle numbered 1, the upper edge of which is course, 1, is laid the strip shin le, 3, the upper edge of which is shown in otted line,

3*. Upon this course is laid another course of shingles, 5, the upper edge of which. is shown by the dotted line, 5 and the right end ofwhich is shown by dotted line, 5, at

which line it is joined by another shingle,

10, of the same course.

The shingle strip, 9, is laid upon the shin gle strip, 5. It will be observed that this method of laying the shingles leaves a double layer of shingles uponall places upon the roof while there is a triple layer extend- .ing. for a short distance above the. lower end of each projecting or exposed portion.

With asphaltic or composition shingles heretofore in use, a great deal of difliculty has arisen from the curlin of the shingles. Wherever the corners are eft exposed, the shingles tend to curl. The form of shingle I have devised does away with all exposed corners and thus prevents curling.

In order to provide a further protection I against curling and to hold the lower ends of the projecting or exposed portions of the shingles in place and at the same time make a certain allowance for expansion and con traction, I have provided' an improved clip. This clip is preferably stamped from a piece of sheet metal in the form shown in F ig-,

ure 2 and is then bent upon the lines 6", 7 and 8, the portions 7 and 8 being cut apart on the line 11.

In applying this clip, the teeth, 6, are bent upwardly at right angles to thebody of the clip and the portions, 6, of the clip is then slipped between the bottom andintermediate shingles. The tooth, 7, is then bent downwardly and the portion, 7, of the clip hammered'down upon the intermediate shingle, being bent upon the lines 69 and 7". During this time, the portion, 8, of the clip remains in its original I flattened position. After the portion, 7, of the clip. has been bent upon and secured to the intermediate shingle, 3, as shown in Figure 3, the upper sl1in-gle,'. 5, is laid upon the intermediate shingle and the portion, 8, of the clip is bent upon the lines, 6 and 8, and hammered down upon the shingle, 5. 1

The teeth, 6 and 7,-are preferably not long enough to extend entirely through the shingle strip. I

In Figure 1 I have shown in the center of the figure one of the clips applied to the roof, showing the portion 7, in dotted lines. In the same figure near the u per right hand corner, I have shown one o the clips with more or less the portion, 7, hammered down to its seat upon the intermediate shingle and with the portion, 8, in its original flat position before being bent up to its closed position.

I prefer to leave a small clearance between the lowerends ofthe shingles and the lower end of the clip when in its closed position as shown in Figure 3.

It is obvious that various modicationsin the form of the clip may be made without departing from the spirit of my invention.

It is also obvious that the lower ends of the shingles may be cut on lines varying from the flattened half circle shown in the drawings without departing from the spirit of my invention, it being one ot the essentials of ihy invention that all exposed corners be done away with and that the lines of the lower pro ecting ends of the shingles correspond to the adjoining upwardly extending indentations so as to avoid any waste of materal in cutting the shingles.

I claim:

1. A roof covering comprisinga plurality of strip shingles having their lower or exposed ends cut substantially on the line of a flattened half circle, with upwardly ex tending indentations on corresponding lines, and a clip comprising a flat body portion of strip shingles with an arm adapted to engage and secure the clip to the indented edge of a lower shingle, and an additional arm adapted to engage and secure the lower end of an upper shingle resting in part upon the lower shingle.

2.- A roof covering comprising a plurality having their lower or exposed ends cut substantially on the line of a flattened half. circle, with upwardly extending indentations on corresponding lines, and

a clip comprising a flat body adapted to rest 7 upon an under shingle, an arm adapted to engage an intermediate shingle, and an additional arm adapted to engage an upper shingle.

3. A roof covering comprising a plurality of strip shingles having their lower or exposed ends cut substantiall on the line of a flattened half circle, with upwardly extending indentations on corresponding lines, and a clip comprising a toothed body adapted to rest upon an under shingle,

a toothed armadapted to engage an intermediate shingle, and an additional engage an upper shingle.-

In testimony whereof he aflixes his signature.

arm adapted to WALTER THOMSEN. 

